<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">

    <!-- jQuery文件。务必在bootstrap.min.js 之前引入 -->
    <script src="https://cdn.staticfile.org/jquery/2.1.1/jquery.min.js"></script>

    <!-- 最新的 Bootstrap 核心 JavaScript 文件 -->
    <script src="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>
<form action="/admin/email1"  method="post" enctype="multipart/form-data">
    <div class="form-group">
        <label for="exampleInputEmail1">主题</label>
        <input type="text" class="form-control" id="exampleInputEmail1" name="topic">
    </div>
    <div class="form-group">
        <label for="exampleInputPassword1">内容</label>
        <input type="text" class="form-control" id="exampleInputPassword1" name="context">
    </div>
    <div class="form-group">
        <label for="exampleInputFile">附件</label>
        <input type="file" id="exampleInputFile" name="face">
        <p class="help-block">Example block-level help text here.</p>
    </div>
    <div class="form-group">
        <label for="exampleInputEmail1">邮箱地址</label>
        <input type="email" class="form-control" id="exampleInputEmail3" placeholder="Email" name="email">
    </div>
    <button type="submit" class="btn btn-default">发送</button>
</form>
</body>
</html>